Insulating-tube machine.



lil-MXL HAEFLELY, 0F BASEL, SW'ITZERLAND, ASSIGNOR T0 WESTINGHOUSE ELECTRIC AND :MANUFACTURING COMPANY, A CGRPORATIGN OE PENNSYVNI ULATING-TUBE MACHINE,

Speccaton of Letters Fateut.

Application led July 1G, 1909. Serial No. 507,002.

2l 'iv/7mm, it may; conce/m.'

e e ily known tba l, EMIL llaiuiinr, a citiifeu of libe Republic of Switzerlaiul, and a resident of Basel, in Switzerlgmil. liaveinvieil a new nil useful linux-moment. in lx1-- sulaling-Tube Machines, el. which be `lfollowingis a specilieation.

.il/ly ii'iYent-iou" relatee" to insulating lube uiaieliines and it has special referenee to malo eliiues .illustrated anal described iu Patents A llos., 358,363 anfl 858384, granted, Jul)v Q, i90?, lo my assignee, the 'lliestingglmuse iler ric bilanufaeturing Con'nluany.

The object of luy inreniou is lo prm'iile if; a .simple anfl ellicenl; device uf the character above indicated that shall be Specially ailapteil for pruelurfing ubes of reeiangular erossfiection. l

En Vthe patent-s above referred ml have ffl@ S i 'irtli machines wliieli not only forni ey ical insulating i'zubes bul, are so ilearirl consrucleil lliat lle insulating' induire? which ii.: usually composed ol einer, mica and shelling mi wine other suit binder, may :suitably luill up iurlue l'ubedorining prune i, 7.

pragmu'e n l for be purl 'il im llie lube by 'winding' a nunivonx" ilul1icms of ibis falu'ifx closel LL a mandrel baring lie f-ii'flr- :mil Snape '"-il for ille (woningY in, the lube? lie-.it

V`ure beii'ig' i as tbe convolu- A licei insulalion are wrapped `upon the el, in order lo 'fuso the li er# or een? "olu'zons liogelxlier and niale a suliil, durable ulure,

eure l u lliel aeeoinpaajuiug ill-'aw irm'rn eliiivaliong unil iligr. f'iu a l lially eeeirinal. elif-:alien ai; rigg'lil aulfle' o lim l olf a niacinue.eousirue'iul in aixzurilauee 'with my iuvenion. Fig: fl an emi vieu? of tbe uieafuue members as they appear when tlie machine ifs iu alienation, amil Fifi". -zis a (leailefl plan v' iew ol' l'lie healing baru erriugg' lo llie (lrau'iugS, the (lex/ice here ebow.; eoinpriees a base plaie .l wlxieli may f in any nuia'lilo animer, post waren i has mail' inifwiiiou l utig i l l l l l l l i l brani i and lili pressother, i

' The hollow pressure plate 7 is rectangular iu section and'is secured to an arm 11 which is pivot-ally aupporlmlv by the poel, 1n. operal'ion the arm ll is slalionary relative to tbe post' 2, it being held in a subslaniinlify liorizonl'al position by means of ay key 12 wliieli may be removed when. it is desired lo swing' the pressure member lo one side for che purpoe of repairing or cleaning' the Contact surfaces of the pressure plates.

The plunger 5 is adjust-ably supported in bearingS 13 oppoefe ends of a vertifal tube 15, rigidly supporl'ed by llie base plate 1'. semi.- cylindrical block 16 is secured to the lower vuil of ille plunger 5 and the Weight 9 is suspended from. pulleys 17 by means of a. strap lliilzat is secured to the 'Weight-'at its ends and passes over the pulleys and un- (ler ille eenii-cylinclrical block l0, The pulleys 1.7 are Supported by brackets 19 which are secured to the bottoni, surface of the baue plate l. and 'die arrangement el parte is such that tbe allraeliion of gravity on the weight Si produces an upward pressure on the plunefer 3 which lends to foree the pressure nwinliers i and 8 togelben This peseure muy be relieved, at tbe will el the operator7 b v means of a handle lever 20 which is piu" fled upon lilie shall; .21 o'r' :me of the pulleys '1T :mil is adapted u @gage slraps QQ Wliirli (lopend from the pressure member la, So ibut a ilowuuaril pr ure upon llie lialulle lever i2() opp-.n.505 ll'ie :u 'ion olf tbe weight il. The rolls l0 are lzilubly mounted in l'ieariugs piroViili-(l in the posts J3 auil l unil llieir irlaeefi ae lulcl in eunagzgeiuenl: wili eac-li ailier Sio lll il; i'L-bey serre as lguiclefs lor llie strip of insulalinjf fabric which i5 ulilizecl in vpnslrucfing the tube. The length of lllie rolls l() corresponds s'libszu'il'ially to that of the pressure members 7 ani'l 8, anil the guide brackets 6 `are so located at tbe ends mi tbe pressure members ll'iat they (lo nel' interfere with the free movement of lli@ strip of insulation as it pasees, between the rollsI forni i n g unal', the guide brarle's 6 (eee i ig, 3), Solwl rode or 0". o4 7 fili-zond .cling iualerial ma aufl H which are provided at' f tween the pressure surfaces of the members ,7 and 8. A strip o f insulating material 1s Y rods-or bars until this stage of the process I bers.

l shellao or other binder which is applied to rthe insulatingjfbric to bind its convolusuitable means for producing the desired -posed in said pressuiemembers when hot,

'insulating strip of fabric is Wound, guide The operation of the. machine is as follows: A mandrel -or forming bar, corre. sponding in cross sectional shape and area to the desired opening in the insulating tube to beconstructed, is rst introduced befed between the rolls 10 and one turn 1s manually wrapped about the mandrel, the pressure being relievedby the lever 20 during the wrapping-process and being applied in order to hold the first convolution in place before the process is continued. In order to vfacilitate. the process, it may be found convenient not to introduce the heated iron is reached. In any event, heat should be applied "at this point in order to soften the tions securely together. The forming rod or mandrel is'then rotated slowly inorder that pressure may be applied to each con.- volutionl as it is added.

- 4The weicht shown m the draivings may obviously be replaced by springs or other pressure, and various structural modifications may be 'effected within the'spirit 'and scope of my invention.

I claim'as my invention: v

l. An insulating tube machine compris ing two relatively7 movable hollow pressure members of heat-conducting material, bars or rods adapted to be heated andtb be disand guide brackets located at the ends of the pressure members' for holding the Work in position between them.

2. A n insulating vtube machine comprising hollow pressure members of heat-con ducting material having plane engaging surfaces, an interposed mandrel upon which an brackets located at the ends of the pressurej members -for preventing the lateral' displacement. of the mandrehand guide rolls adjacent and parallel to the pressure mem- 3. An insulating tube machine comprising hollow pressure members of heat-com ducting material having plane engaging surfaces, an interposed mandrel to receive.

convolutions of insulating' fabric, rods or bars adapted t'o be heated and to be disposed AWithin the pressure members when hot for imparting heat thereto, guid brackets located at the ends of the pressure members for preventing the lateral displacementof `the mandrel, and guide rolls'adjacent and parallel to the.- pressure members between which the insulating strip is fed tothe mandrel. l

4. An insulating tube machine compris ing a vertical ro d,or plunger, a pressure member secured to the upper end thereof, a

lstationary pressure member coperating therewith, means for producing a., constant upward pressure upon-the plunger, station.- ary guide brackets located at the ends of the pressure members, and a pair of guide rolls adjacent and parallel to the pressure member, and-manually operated means for relieving the pressure upon the plunger.

5. An insulating'tube machine comprising'a stationary base plate, a tubular `guide member'secured thereto, a vertical rod orA plunger mounted in thetubular guide mem# ber, a hollow pressure member secured to the upper end ofthe plunger, a stationaryy hollow pressure member disposed above the;

movable pressure member and coperating therewith, guide brackets supported vby the I stationary base adjacent to the ends of the pressure. members to prevent lateral displacement of the lWork in the machine. stationary guide rolls adjacent and parallel to the pressure members, and' rods or bars adapted t' be heated and to be inserted in the pressure members when hot for impart- W'itnessos ll. J. llmnnonx, ll. ll. llivrs. 

